If you want all your clients to use the No Sounds sound scheme, I would configure the default profile, so that new users get the No Sounds sound scheme.

For existing users, apply the following NoSounds.reg file:

REGEDIT4

\[HKEY_CURRENT_USER\AppEvents\Schemes\]
@=".None"

You can include this entry in a logon script, or you can use tip 4195 to apply it.

NOTE: The user will have to log off and log on for the setting to become effective.

NOTE: You can also use tip 4195 to apply the change to the default profile, by using the following registry key:

HKEY_USERS\.DEFAULT\AppEvents\Schemes